Double acting pump having inlet and outlet poppet valves

A double acting pump having inlet and outlet poppet valves comprising a housing, a double acting piston assembly slidably mounted in said housing, said double acting piston assembly having a pair of axially spaced pistons, a piston rod connected between said pistons, a bulkhead mounted in said housing, said piston rod extending through said bulkhead and slidably mounted therein, a pair of pump cylinders formed in the portion of the housing in which each piston reciprocates, each cylinder having an end portion terminating with an end wall, a suction poppet valve and a discharge poppet valve being mounted at the end portion of each pump cylinder, each poppet valve comprising, a valve body, a removable valve seat mounted on the interior surface of the valve body, a clamp securing the valve body and associated valve seat to the pump housing, a valve head engageable with said valve seat, a stem connected to said valve head, an end wall mounted in said valve body, said stem extending through said end wall and slidably mounted therein, a spring mounted between said end wall and said valve head for biasing said poppet valve to the closed position, whereby the stem functions as an indicator rod to indicate the position of the valve head relative to the valve seat;

• an inlet port provided in said housing, a first manifold communicating said inlet port with each suction poppet valve, a discharge port, a second manifold communicating said discharge port with each discharge poppet valve, said end wall on the end portion of each cylinder being inclined to prevent debris in the pumped fluid from becoming lodged between the double acting piston assembly and pump cylinder end wall.